1. Department of Pediatrics, University Hospital of Cologne and Faculty of Medicine, University of Cologne , Cologne , Germany
2. Department of Pediatric Imaging, Jeanne de Flandre Hospital, Lille University Hospitals , Lille Cedex, France
3. Institute of Pathology, University Hospital RWTH Aachen , Aachen , Germany
4. Medical Clinic II (Nephrology and Immunology), University Hospital RWTH Aachen , Aachen , Germany
5. Pediatric Nephrology, Dialysis and Transplant Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico , Milan , Italy
6. Department of Pathology, Immunology and Laboratory Medicine, University of Florida , Gainesville , FL, USA
7. Nuclear Medicine Unit, Circolo Hospital and Macchi Foundation , ASST-settelaghi, Varese , Italy
8. The Polycystic Kidney Disease Charity , London , UK
9. Laboratory of Hereditary Kidney Diseases, Université de Paris, Imagine Institute , INSERM UMR 1163, Paris , France
10. APHP, Service de Néphrologie Pédiatrique, Centre de Référence MARHEA, Hôpital universitaire Necker-Enfants malades , Paris , France
11. Department of Pediatrics and Adolescent Medicine, Friedrich-Alexander University of Erlangen-Nürnberg , Erlangen , Germany
12. Research Center On Rare Kidney Diseases (RECORD), University Hospital Erlangen , Erlangen , Germany
13. Nephrology Center, Ludwig Maximilian University (LMU) , Munich , Germany
14. Department of Pediatric Nephrology, Wilhelmina Children's Hospital, University Medical Center Utrecht , Utrecht , The Netherlands
15. Pediatric Urology Unit, Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico , Milan , Italy
16. Department of Clinical Sciences and Community Health, University of Milano , Milan , Italy
17. Laboratory of Immunopathology and Molecular Biology of the Kidney, Department of Women's and Children's Health, University of Padova , Padua , Italy
18. Federation of European Patient Groups affected by Rare/Genetic Kidney Diseases (FEDERG) , Brussels , Belgium
19. Department of Pediatric Nephrology and Rheumatology, Ghent University Hospital , Ghent , Belgium
20. Division of Neonatology and Pediatric Intensive Care Medicine, Department of Pediatric and Adolescent Medicine, Friedrich-Alexander-Universitat Erlangen-Nürnberg , Erlangen , Germany
21. Department of Pediatric Nephrology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Amalia Children's Hospital , Nijmegen , The Netherlands
22. Department of Pediatric Nephrology, Marburg Kidney Research Center, Philipps University , Marburg , Germany
23. University College London Great Ormond Street, Institute of Child Health , London , UK
24. Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, University of Manchester , Manchester , UK
25. Royal Manchester Children's Hospital, Manchester University National Health Service Foundation Trust, Manchester Academic Health Science Centre , Manchester , UK
26. Division of Pediatric Nephrology, Center for Pediatrics and Adolescent Medicine, University Hospital Heidelberg , Heidelberg , Germany
27. Center for Molecular Medicine Cologne, University Hospital of Cologne and Faculty of Medicine, University of Cologne , Cologne , Germany
28. Center for Rare Diseases Cologne, University Hospital of Cologne and Faculty of Medicine, University of Cologne , Cologne , Germany
29. Center for Family Health, University Hospital of Cologne and Faculty of Medicine, University of Cologne , Cologne , Germany